Revert "ping was not working properly and forced an EVASIVE event once every 5 seconds"
Revert "ping was not working properly and forced an EVASIVE event once every 5 seconds"

This reverts commit 58ad1ae1dcd4cd5f86d48c341abe28384260f257.

zeromq/zyre,zeromq/zyre,zeromq/zyre,zeromq/zyre,zeromq/zyre,zeromq/zyre,zeromq/zyre,zeromq/zyre